The various options mean: `ro' mounts the file system as read-only;
`user' lets any user mount the file-system; `nohide' shows hidden and
associated files; 'noexec' avoids regular files showing up as
non-executable.

Then create directories for the mount points:

# mkdir /nt/c
# mkdir /nt/d

As any user can then mount the drives:

# mount /nt/c
# mount /nt/d

These will be mounted each time you reboot, unless you add the
`noauto' option to the appropriate lines in /etc/fstab.

Users are granted access to [NTFS]/nt/c and
[NTFS]/nt/d through the use of the
umask=002,gid=100 in the /etc/fstab, and then add
trusted users to this group. You can allow access for only a specific
user by adding "uid=1000,gid=1000" to the options. Or you can remove
all security and give complete access to everyone with
umask=000 (this is dangerous as any login will be able to
peruse your possibly private and password containing files on the NTFS
partition).

Note that permissions on the mountpoint itself ([NTFS]/nt/c are
irrelevant: when you mount a filesystem the permissions of the mounted
filesystem's root directory replace the permissions of the mountpoint,
even when the filesystem in question does not support permissions.